Robert,
Use parentheses so that it applies the MatrixForm after the assignment rather
than assigns the MatrixForm to the variable.
(G = {{1, 2}, {3, 4}}) // MatrixForm
(H = {{5, 6}, {7, 8}}) // MatrixForm
G.H
{{19, 22}, {43, 50}}
Bob Hanlon
In a message dated 9/24/1999 4:57:36 AM, scheyder at math.upenn.edu writes:
>When I define two matrices such as G={{1,2},{3,4}} and H={{5,6,},{7,8}}
>and
>then perform an operation such as multiplication, I get the correct result.
>But, if I add MatrixForm to each matrix first and then perform the
>operation, the operation is not evaluated. The output is simply two
>Standard Form expressions with no result.
>